I build the software and hardware that test things on a factory floor: test fixtures, the firmware inside them, the desktop tools operators run, and the internal platforms that tie it all together. Day job is manufacturing engineering at Sensit Technologies, a maker of gas detection instruments. Outside of that, I do reverse engineering and the occasional bit of security research.

Most of that work is private, so here's what it looks like:

• Production test fixtures, end to end. ESP32 / Arduino firmware in C and C++, custom PCBs in EasyEDA (and KiCad), mechanical jigs in SolidWorks. Display, Bluetooth signal-strength, battery, leak, burn-in and sensor testers running on the line today.
• Replacing legacy tooling. Rewrote a C# sensor programmer in Rust and swapped a proprietary I²C adapter for a Raspberry Pi Pico bridge with a small serial protocol of my own.
• An internal platform for manufacturing engineering. Go backend, Svelte frontend, and a Tauri desktop client that identifies the fixture on a bench over serial, fetches the matching tool, and launches it. Tools post results back for yield tracking. Includes CI, deploys, and a two-person release approval flow.
• Search over a decades-old engineering archive. Full-text search over a ~37k-document fileshare for the whole engineering team, built in Go on SQLite FTS5 with ranking that learns from what people open.
• Instrument control and vision. PyVISA / DAQ-driven characterization rigs (thermistor binning with Steinhart-Hart matching), and camera-based OCR that reads instrument displays with a CNN plus a vision-language model.

Rust · Go · C / C++ (ESP32, Arduino) · Python · Svelte / TypeScript · EasyEDA · KiCad · SolidWorks · SQLite / Postgres · Docker